diff --git a/src/test/java/org/apache/commons/math/optimization/MultiStartMultivariateRealOptimizerTest.java b/src/test/java/org/apache/commons/math/optimization/MultiStartMultivariateRealOptimizerTest.java
index 6b2a5e475..ac6a7bffc 100644
--- a/src/test/java/org/apache/commons/math/optimization/MultiStartMultivariateRealOptimizerTest.java
+++ b/src/test/java/org/apache/commons/math/optimization/MultiStartMultivariateRealOptimizerTest.java
@@ -20,7 +20,6 @@ package org.apache.commons.math.optimization;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
-import org.apache.commons.math.ConvergenceException;
 import org.apache.commons.math.analysis.MultivariateRealFunction;
 import org.apache.commons.math.exception.MathUserException;
 import org.apache.commons.math.optimization.direct.NelderMead;
diff --git a/src/test/java/org/apache/commons/math/optimization/direct/PowellOptimizerTest.java b/src/test/java/org/apache/commons/math/optimization/direct/PowellOptimizerTest.java
index ec9e23473..dfbde93c3 100644
--- a/src/test/java/org/apache/commons/math/optimization/direct/PowellOptimizerTest.java
+++ b/src/test/java/org/apache/commons/math/optimization/direct/PowellOptimizerTest.java
@@ -22,7 +22,6 @@ import org.apache.commons.math.analysis.MultivariateRealFunction;
 import org.apache.commons.math.analysis.MultivariateVectorialFunction;
 import org.apache.commons.math.analysis.SumSincFunction;
 import org.apache.commons.math.optimization.GoalType;
-import org.apache.commons.math.optimization.MultivariateRealOptimizer;
 import org.apache.commons.math.optimization.RealPointValuePair;
 import org.apache.commons.math.optimization.SimpleScalarValueChecker;
 import org.junit.Assert;
diff --git a/src/test/java/org/apache/commons/math/optimization/general/NonLinearConjugateGradientOptimizerTest.java b/src/test/java/org/apache/commons/math/optimization/general/NonLinearConjugateGradientOptimizerTest.java
index e2bee8b4e..75b565099 100644
--- a/src/test/java/org/apache/commons/math/optimization/general/NonLinearConjugateGradientOptimizerTest.java
+++ b/src/test/java/org/apache/commons/math/optimization/general/NonLinearConjugateGradientOptimizerTest.java
@@ -31,7 +31,6 @@ import org.apache.commons.math.exception.MathUserException;
 import org.apache.commons.math.linear.BlockRealMatrix;
 import org.apache.commons.math.linear.RealMatrix;
 import org.apache.commons.math.optimization.GoalType;
-import org.apache.commons.math.optimization.OptimizationException;
 import org.apache.commons.math.optimization.RealPointValuePair;
 import org.apache.commons.math.optimization.SimpleScalarValueChecker;